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    <title>Head First Lounge</title>                <!--为页面指定一个标题-->
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    <h1>Welcome to the Head First Lounge</h1>       <!--一级标题-->
    <img src="drinks.gif">                          <!--图像-->
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      Join us any evening for refreshing elixirs,
      conversation and maybe a game or
      two of <em>Dance Dance Revolution</em>.       <!--强调Dance Dance Revolution-->
      Wireless access is always provided;
      BYOWS (Bring your own web server).
    </p>                                            <!--段落结束-->
    <h2>Directions</h2>                             <!--二级标题-->
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      You'll find us right in the center of
      downtown Webville. Come join us!
    </p>                                            <!--段落结束-->
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</html>                                             <!--告诉浏览器HTML在这里结束-->
